Anti-disengaging groove device for elevator
The elevator's defense groove assembly with matching arcs and minimal gap slots addresses the challenge of wire disengagement and wear, enhancing stability and maintenance ease.
Patent Information
- Application Number
- CN202422131298.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-30
- Publication Date
- 2025-07-15
- Estimated Expiration
- 2034-08-30
AI Technical Summary
In the existing elevator anti-detachment design, too small gap affects the operation of the wire rope, too large gap can easily cause anti-detachment failure, and cannot effectively prevent the wire rope from falling apart from the rope wheel.
A limit groove matching the wire rope is provided on the limit plate of the rope wheel, and a gap smaller than the diameter of the wire rope is designed between the limit plate and the rope wheel, and a U-shaped support and baffle form a surrounding structure, and a limit plate made of nylon material is used to reduce wear.
Effectively prevent wire rope from being detached, reduce wire rope damage, simple structure and easy to install, suitable for a variety of rope winding methods, and easy to maintain.
Smart Images
Figure CN223102443U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to an anti - derailment device for elevators, belonging to the technical field of elevators. Background Art
[0002] The elevator sheave is a conventional component in the system, which mainly plays a role in towing the counterweight or balance weight in the whole elevator. In order to prevent the steel wire rope from disengaging from the sheave during the use of the elevator, the prior art designs an anti - derailment plate, which mainly limits the gap between it and the outer contour of the sheave to prevent the steel wire rope from disengaging. However, if the gap is too small, it will affect the normal operation of the steel wire rope and cause greater damage to the steel wire rope. If the gap is too large, it is easy to cause anti - derailment failure. Therefore, a new solution is needed to solve this problem. Content of the Utility Model
[0003] The purpose of the utility model is to provide an anti - derailment device for elevators to overcome the deficiencies of the prior art.
[0004] To achieve the above - mentioned purpose, the technical solution adopted by the utility model is: an anti - derailment device for elevators, which includes an elevator main body and a sheave installed on the elevator main body. The sheave is used for connecting the steel wire rope. At least one side of the front and rear sides of the sheave is provided with an anti - derailment groove assembly. The anti - derailment groove assembly includes a support, a baffle, and a limit plate. The baffle is fixedly connected to the support, the support is fixedly connected to the elevator main body, and both ends of the limit plate are respectively fixed to the support and the baffle. A plurality of limit grooves are opened on the side surface of the limit plate close to the sheave, and the limit grooves cooperate with the protruding parts of the steel wire rope on the sheave. There is a gap between the limit plate and the sheave, and the width of this gap is smaller than the diameter of the steel wire rope on the sheave.
[0005] Preferably, the side surface of the limit plate close to the sheave is an arc surface, and this arc surface matches the outer peripheral wall of the sheave.
[0006] Preferably, the number of the limit grooves on the limit plate is the same as the number of the steel wire ropes on the sheave.
[0007] Preferably, the cross - sections of the support and the baffle are both U - shaped, and the support and the baffle are perpendicularly fixed to form a surrounding structure on one side of the sheave.
[0008] Preferably, the limit plate is made of nylon material.
[0009] Preferably, the sheave is fixedly installed on the elevator main body through a wheel shaft.
[0010] Due to the application of the above - mentioned technical solution, the utility model has the following advantages compared with the prior art:
[0011] 1. The utility model limits the steel wire rope by opening a limiting groove matching the steel wire rope on the arc surface of the limiting plate and designing a gap with a width smaller than the diameter of the steel wire rope between the limiting plate and the rope pulley, effectively preventing the steel wire rope from coming out of the groove and reducing the damage to the steel wire rope at the same time.
[0012] 2. The utility model has a simple structure, excellent anti-out-of-groove effect, wide application conditions, easy installation, stronger restraint of the limiting groove on the steel wire rope, and convenient maintenance and replacement. Brief Description of the Drawings
[0013] The technical solution of the utility model will be further described below in conjunction with the drawings:
[0014] Att Figure 1 is a schematic structural diagram of an embodiment of an anti-out-of-groove device for an elevator according to the utility model;
[0015] Att Figure 2 is a schematic structural diagram of another embodiment of an anti-out-of-groove device for an elevator according to the utility model;
[0016] Att Figure 3 is a schematic structural diagram of the anti-out-of-groove assembly according to the utility model.
[0017] In the figure: 1, elevator main body; 2, rope pulley; 3, steel wire rope; 4, support; 5, baffle; 6, limiting plate; 7, limiting groove; 8, wheel shaft. Detailed Description of the Embodiment
[0018] The utility model will be further described in detail below in conjunction with the drawings and specific embodiments.
[0019] As shown in Att Figure 1 , an anti-out-of-groove device for an elevator according to the utility model includes an elevator main body 1 and a rope pulley 2 installed on the elevator main body 1. Specifically, the rope pulley 2 is fixedly installed on the elevator main body 1 through a wheel shaft 8, and the rope pulley 2 is used to connect a steel wire rope 3. In this embodiment, the rope pulley 2 has a groove, and a part of the steel wire rope 3 is embedded in the groove, and the other part protrudes outside the groove.
[0020] As shown in Att Figure 1 and 3 , in the first embodiment, an anti-out-of-groove assembly is provided on either the front or rear side of the rope pulley 2; wherein, the anti-out-of-groove assembly includes a support 4, a baffle 5 and a limiting plate 6. The baffle 5 is fixedly connected to the support 4, the support 4 is fixedly connected to the elevator main body 1, and both ends of the limiting plate 6 are respectively fixed to the support 4 and the baffle 5; in this embodiment, the cross-sections of the support 4 and the baffle 5 are both U-shaped, and the support 4 and the baffle 5 are fixedly perpendicular to each other and form an enclosing structure for one side of the rope pulley 2.
[0021] A plurality of limiting grooves 7 are formed on the side surface of the limiting plate 6 close to the rope pulley 2. Among them, the limiting grooves 7 cooperate with the protruding parts of the steel wire ropes 3 on the rope pulley 2, and the number of the limiting grooves 7 on the limiting plate 6 is the same as that of the steel wire ropes 3 on the rope pulley 2, so that the limiting grooves 7 semi-wrap the protruding parts of the steel wire ropes 3 on the rope pulley 2. There is a gap between the limiting plate 6 and the rope pulley 2, and the width of this gap is smaller than the diameter of the steel wire ropes 3 on the rope pulley 2, thereby limiting the steel wire ropes 3, effectively preventing the steel wire ropes 3 from slipping out of the grooves, and at the same time being able to reduce the damage to the steel wire ropes 3.
[0022] The side surface of the limiting plate 6 close to the rope pulley 2 is an arc surface, and this arc surface matches the outer peripheral wall of the rope pulley 2 to ensure that the distances from the points on the arc surface on the side of the limiting plate 6 close to the rope pulley 2 to the outer edge of the rope pulley 2 are equal, thereby avoiding interference between the limiting plate 6 and the rope pulley 2.
[0023] In this embodiment, the limiting plate 6 is made of nylon material. Utilizing the characteristics of high strength and high wear resistance of the nylon material to extend the service life of the limiting plate 6 and reduce the failure rate during operation; of course, in other embodiments, the limiting plate 6 made of materials such as PVC and aluminum profiles can also be adopted according to actual situations.
[0024] As shown in the attached Figure 2 and 3 figure, in another embodiment, anti-slip-out components are arranged on both the front and rear sides of the rope pulley 2. The structure of the anti-slip-out components is the same as that in the first embodiment and will not be elaborated here. By arranging the anti-slip-out components on both the front and rear sides of the rope pulley 2, the stability of the entire structure can be improved and a better anti-slip-out effect can be obtained.
[0025] All in all, the structure of the anti-slip-out device for elevators of the present utility model is simple, has an excellent anti-slip-out effect, has a wide range of operating conditions, can be applicable to the rope blocking schemes of all winding methods in 5.5.7.3 of GB7588.1-2020, is easy to install, the limiting grooves 7 have a stronger constraint on the steel wire ropes, and is convenient for maintenance and replacement.
[0026] The above are only specific application examples of the present utility model, which do not constitute any limitation to the protection scope of the present utility model; all technical solutions formed by equivalent transformation or equivalent substitution fall within the scope of the protection of the rights of the present utility model.
Claims
1. An anti-off-track device for an elevator, comprising an elevator main body (1) and a rope pulley (2) installed on the elevator main body (1), the rope pulley (2) being used for connecting a steel wire rope (3), characterized in that: An anti - detachment groove assembly is provided on at least one of the front and rear sides of the rope pulley (2); the anti - detachment groove assembly includes a support (4), a baffle (5) and a limit plate (6). The baffle (5) is fixedly connected to the support (4), the support (4) is fixedly connected to the elevator main body (1), and both ends of the limit plate (6) are respectively fixed to the support (4) and the baffle (5); a plurality of limit grooves (7) are formed on the side surface of the limit plate (6) close to the rope pulley (2), and the limit grooves (7) cooperate with the protruding parts of the steel wire rope (3) on the rope pulley (2); there is a gap between the limit plate (6) and the rope pulley (2), and the width of this gap is smaller than the diameter of the steel wire rope (3) on the rope pulley (2).
2. The anti - derailment device for an elevator according to claim 1, wherein: The side surface of the limit plate (6) close to the rope pulley (2) is an arc surface, and this arc surface matches the outer peripheral wall of the rope pulley (2).
3. The anti-derailment device for an elevator according to claim 1 or 2, characterized in that: The number of the limit grooves (7) on the limit plate (6) is the same as the number of the steel wire ropes (3) on the rope pulley (2).
4. The anti-derailment device for an elevator according to claim 1, wherein: The cross - sections of the support (4) and the baffle (5) are both U - shaped, and the support (4) and the baffle (5) are perpendicularly fixed to form an enclosing structure on one side of the rope pulley (2).
5. The anti-derailment device for an elevator according to claim 1, wherein: The limit plate (6) is made of nylon material.
6. The anti-derailment device for an elevator according to claim 1, wherein: The rope pulley (2) is fixedly installed on the elevator main body (1) through a wheel shaft (8).